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WOAU10 AMMC 311159

IDY21090
40:2:1:04:70S100E35060:01:00
SECURITE
High Seas Weather Warning for METAREA 10
Issued by the Australian Government Bureau of Meteorology
At 1159UTC 31 August 2025

GALE WARNING 10 FOR WESTERN, SOUTHEASTERN AND SOUTHERN AREAS

SITUATION AT 311200UTC
Vigorous flow associated with cold front 38S096E 48S115E 52S120E 56S118E
56S105E to low 962hPa near 56S105E. Forecast 38S103E 50S123E 55S128E 58S119E
56S109E to low 961hPa near 56S109E at 311800UTC, 37S109E 56S134E 59S123E
56S114E to low 962hPa near 56S114E at 010000UTC, 38S119E 48S125E 56S135E
60S125E to low 962hPa near 56S119E at 010600UTC, and just the cold front near
40S125E 51S131E at 011200UTC with low weakening.

AREA AFFECTED
Bounded by 42S080E 36S109E 38S120E 41S128E 49S137E 55S130E 54S080E 42S080E.

FORECAST
Northwesterly quarter winds within 180nm east of cold front, shifting westerly
quarter within 1260nm west of cold front and turning clockwise within 300nm of
low in northern semicircle. Wind speeds 30/47 knots. Winds associated with cold
front and south of 51S easing below 34 knots by 312100UTC and contracting to
within 990nm west of cold front by 010000UTC. Winds associated with the low
easing below 34 knots by 010600UTC. Very rough to high seas. Moderate to heavy
swell.

PLEASE BE AWARE
Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger
than the forecast, and stronger still in squalls and thunderstorms. Maximum
waves can be twice the forecast height.


The next alert will be issued by 1900 UTC 31 August 2025